Back to map
United States · Alaska

M1.7 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-09-17 11:03:08 UTC Local time: —
Magnitude
M1.7
Depth
21.5 km
Source
USGS

Alaska · Matanuska-Susitna Borough

Country overview

Map

About this earthquake

A magnitude M1.7 earthquake was recorded near Matanuska-Susitna Borough, Alaska (United States) on September 17, 2026 at 11:03 UTC. The hypocenter lay relatively close to the surface at around 22 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 177 earthquakes, the strongest at M5.2.

Depth profile

Depth profile Depth: 21.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 21.5 km
Shallow
21.5 km
21.5 km — deeper than the regional average (15.2 km)
Regional average: 15.2 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Volcanoes nearby

  • Buzzard Creek
    Distance: 190 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Wrangell
    Distance: 222 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Hayes
    Distance: 232 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 242 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Redoubt
    Distance: 318 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Churchill
    Distance: 357 km ·Stratovolcano ·Elevation: 5'005 m ·Last eruption: 847 ·United States

Alaska

Context for this earthquake

17 Sep 2025 – 17 Sep 2026 · M ≥ 2.0 · 4,099 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historic earthquake map · United States

Open history map
Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · United States

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

Share